package com.dream.xiaobo.filter;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import java.io.IOException;

/** 字符编码过滤器
 * @author xiaobo
 * @date 2021/8/26 - 8:31
 */
@WebFilter(urlPatterns = "/*")
public class EncodingFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {

        //设置编码格式
        servletRequest.setCharacterEncoding("UTF-8");
        servletResponse.setContentType("text/html;charset=UTF-8");

        //放行
        filterChain.doFilter(servletRequest,servletResponse);
    }

    @Override
    public void destroy() {

    }

}
